In ISM330DLC, is odr equals to smaling frequency? if not how to calculate the sampling frequency to calculate the FFT

[raghava.ch]

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[Eleon BORLINI]

Hi, the maximum bandwidth is equal to ODR/2 (if no filter is applied on the acquisition chain), as for Nyquist theorem.

You can fin the description of accelerometer max bandwidth (i.e. maximum detectable frequency) at p. 13/14 of the AN5125

https://www.st.com/content/ccc/resource/technical/document/application_note/group0/68/eb/a3/cd/2c/78/45/41/DM00468454/files/DM00468454.pdf/jcr:content/translations/en.DM00468454.pdf

[BC U]

Hi Eleon,

Thanks for your quick response.

We will check if we can validate the data by using ODR/2 as sampling frequency.(If no filter used) and respond here.

Thanks.